McDonnell Douglas MD-11 N814DE
8 November 1996 · Dayton, Ohio, United States · No injuries
Summary
On 8 November 1996 at about 01:15 local time, a McDonnell Douglas MD-11 registered N814DE was involved in an incident near Dayton, Ohio, United States. 209 people were on board and nobody was injured. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 01:15
- Classification
- Incident
- Location
- Dayton, Ohio, United States
- Coordinates
- 39.8204, -84.0492
- Aircraft
- McDonnell Douglas MD-11
- Registration
- N814DE
- Category
- Airplane
- Engines
- 3
- Operator
- Not recorded
- Operating rule
- Part 121: Air Carrier
- Purpose of flight
- Unknown
- Phase of flight
- Not recorded
- Route
- Gatwick → Cincinnati
- Aircraft damage
- Not recorded
- Weather
- Unk
- Light
- Day
- NTSB number
- IAD97IA018
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 209 | 0 | 0 | 0 | 209 |
Probable cause
Failure of the output drive unit shear pin due to lack of lubrication to the screw actuator assemblies. Contributing to the cause was the aircraft manufacturer's production and inspection personnel failing to lubricate the screw assemblies after initial installation and again after washing.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
While en route the flight crew experienced a failure of the pitch trim control system. The crew was unable to change the pitch trim by the yoke mounted trim switches or the center console mounted horizontal stabilizer control handles. The crew stated that when the slats were extended on descent, they were unable to change stabilizer trim. Subsequent examination of the horizontal stabilizer pitch trim system found that there was no lubrication on the screw actuator assemblies and that the fuse pin had sheared in the output drive unit of the horizontal stabilizer drive gearbox. The sheared fuse pin locked the horizontal stabilizer in its last set position, as designed. A review of Assembly Orders at Douglas Aircraft (DAC) found that DAC production personnel and DAC Inspection personnel stamped the assembly orders indicating completion and acceptance of the lubrication. However, the investigation revealed that no lubrication had been applied to the screw actuator nuts.
Quoted verbatim from the NTSB record.
Other McDonnell Douglas MD-11 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 6 Nov 1996 | McDonnell Douglas MD-11 | Buenos Aires, Argentina | World Airways | No injuries | - |
| 25 May 1996 | McDonnell Douglas MD-11 | Los Angeles, California, United States | - | No injuries | - |
| 14 Jul 1996 | McDonnell Douglas MD-11 | Westerly, Rhode Island, United States | American Airlines | Serious injuries | - |
| 23 Jan 1996 | McDonnell Douglas MD-11 | Miami, Florida, United States | Viacao Aerea SAO Paulo SA | No injuries | - |
| 16 May 1996 | McDonnell Douglas MD-11-F | Anchorage, Alaska, United States | Federal Express | Minor injuries | - |
| 24 Oct 1997 | McDonnell Douglas MD-11 | Montevideo, Uruguay | - | Unknown | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 10 Jul 1996 | Cessna 150 | Vincent, Ohio, United States | David & Susan Board | Serious injuries | - |
| 6 Jul 1996 | Boeing Stearman E75N1 | Goshen, Ohio, United States | - | No injuries | - |
| 14 Jul 1996 | Cessna 152 | Blue Ash, Ohio, United States | - | No injuries | - |
| 19 Jul 1996 | Cessna 172M | Tremont City, Ohio, United States | MAD River Airport, Inc. | No injuries | - |
| 23 Jul 1996 | Corben Baby Ace C-1 | Portsmouth, Ohio, United States | - | Minor injuries | - |
| 4 Aug 1996 | Cessna 150 | Waverly, Ohio, United States | - | Minor injuries | - |